Thread-storage, thread-advancing device



Jan. 11, 1944. P. M. COLE THREAD-STORAGE, THREADADVANCING DEVICE FiledAug. '7, 1941 IN VENTOR.

M. CULE ATTORN? Fig.3..

I \ZJL UZMW 78a Patented Jan. 11, 1944 THREAD-STORAGE,

TIREAD-ADVANCING DEVI E Paul M. Cole, Auburn, N.Y., assignor to AmericanViscose Corporation, Wilmington, Del., a corporation of DelawareApplication August 7, 1941, Serial No. 405,757

Claims.

This invention relates to improvements in selfthreading, thread-storage,thread-advancing devices.

In the manufacture of threads, yarns and the like it is often desirableto subject the traveling thread to a processing step. Devices on whichtraveling thread can be processed have been suggested before, such asspaced canted rollers or godets. While these devices enabled a largequantity of thread to be stored and subjected to the processingoperation, they were open to the objection that they were not readilyself-threading and often the thread became tangled around one oftherollers or godets and was damaged I and hard to remove.

This invention has for its principal object to provide improvements inself-threading, threadstorage, thread-advancing devices.

A further object of the invention is to provide improvements inself-threading, thread-storage, thread-advancing devices on which thethread will not become tangled and from which it can be readily removed.

Other objects and advantages of the invention will be apparent from thefollowing description and accompanying drawing.

In the drawing:

Figure 1 is an elevational view of a preferred form of device embodyingapplicants invention.

Figure 2 is an end view of the form of device 30 shown in Figure 1.

Figure 3 is a sectional view on line 3-3 of Figure 2 with parts brokenaway.

The embodiment of the invention shown in the drawing comprises theroller members I and 2 revolvably mounted on the shafts 3 and 4. Theshafts are not parallel but are canted or mounted at an angle to eachother. The continuous, flexible, foraminous belt-like member 5 of wiremesh, chain links or fabric passes over the rollers. The belt-likemember is sufficiently flexible to conform to and travel with eachroller with which 'it isin contact. Spaced apart, transversely extendingbar members 6 are carried on the outside of the belt-likemember in amanner that permits the belt to flex. The bar members are shown asunitary members extending across the belt but may comprise a pluralityof longitudinally spaced the roller with which they are in contact andmaintain the belt-like member on the rollers. The belt-like member maybe slightly longer than the path around the rollers so that whileoperat- 5 the side of the belt to which the thread is first directedlarger than the ends of the rollers adjacent the side of the belt fromwhich the thread is withdrawn. Where it is desired to prevent shrinkageor to stretch the thread, the taper 0 may extend in the oppositedirection.

In the operation of the device at least one of the rollers is positivelyrevolved in the direction shown by the arrow in Figure 2. The thread isdirected to the belt member where it contacts the transversely extendingbar members. Due to the flexibility of the belt, each part travels inthe same path as the part of the roller with which it is in contact. Thebar members move in a curved path concentric with the portion of theroller over which they pass. The thread is directed to the device undera slight amount of tension and while traveling with the belt-like memberchanges its path of travel from movement in a plane at -right angles tothe axis of one roller to movement in a plane atright angles to the axisof the other roller and thereby traverses across the belt-like member.In order to limit the sliding of the thread along the bar members whiletraversing across the belt-like member, the belt-like member may beslightly longer than the path around the I rollers. Due to the slack inthe belt-like member, one side of the belt-dike member paSSing'betweenthe rollers will be maintained taut while the other side will curveinwardly as indicated by reference character A. The thread whilechanging its path of travel from one roller to the other will not be mcontact with the bar'members in the slack portion of the belt-likemember.

The term thread or strand as used through- 40 out the specification isintended to include yarns,

- threads, cords, filaments and the like.

While a preferred embodiment of the invention has been shown, it is tobe understood that changes and variations .may be made without departingfrom the spirit of the invention as defined by the appended claims. WhatI claim is:

1. A thread-storage, thread-advancing device comprising a pair of cantedrollers, an endless o belt member of flexible forami'nous materialcarried byand about the rollers and transversely extending threadcontacting members mounted on the belt member.

2. A thread-storage, threadvadvancing device a comprising a pair ofcanted rollers, an endless belt member of flexible ioramlnous materialcar= ried by and about the rollers and transversely extending threadcontacting members mounted on the belt member, said thread contactingmembers being spaced along the belt member.

3.1%. strand-storage and advancing device for supporting and traversinga strand in a plurality of turns across the device comprising aplurality of canted rollers and an endless strand carrying belt memberpassing over the rollers in contact with only a portion of the peripheryof each oi the rollers, said strand carrying belt member being of awidth equal to at least the path of traverse of the strand across thedevice.

4. A strand-storage and advancing device for supporting and traversing astrand in a plurality of turns across the device comprising a pluralityof canted rollers, an endless strand carrying belt member passing overthe rollers in contact with only a portion of the periphery of each ofthe rollers, means for retaining the strand carrying belt member on therollers in position to support and traverse the strand, said strandcarrying belt member being of a width equal to at least "the path oftraverse of the strand across the device.

5. A strand-storage and advancing device for supporting and advancing astrand in a plurality of turns across the device comprising a pluralityof canted rollers and an endless strand carrying belt member passingover the rollers in contact with only a portion of the periphery of eachof the rollers, means for retaining the strand carrying belt member onthe rollers in position to support and traverse said strand andpreventing substantial displacement of the strand carrying belt memberlengthwise of the device, said strand carrying belt member being of awidth equal to at least the path of traverse of the strand across thedevice. V

6. A strand-storage and advancing device comprising a pair of cantedrollers and an.. endless strandcarrying belt member passing .jover therollers in contact with'only a portion of the periphery of each of therollers, said strand carry ing belt member extending substantially thelength of the rollers '7. A strand-storage and advancing devicecomprising a pair of canted rollers and an endless strand carrying beltmember passing over the roilers in contact with only a portion of theperiphery of each of the rollers, said strand carrying belt member beingof a greater length than the path around the rollers and of a widthsubstantially equal to the length of the rollers.

8. A strand-storage and advancing device comprising a pair of cantedrollers, an endles belt member carried by and about the rollers incontact with only a portion of the periphery of each of the rollers,said belt member having a strandcarrying peripheral portion ofsubstantial width for carrying a plurality of laterally displacedconvolutions of the strand about the rollers withoutpermitting thestrand to contact the rollers for any substantial distance, and meansfor preventing substantial displacementof the strand carrying beltmember on the rollers in a direction longitudinally of the rollers.

9. A strand-storage and advancing device comprising a pair of cantedrollers and an endless strand carrying belt member passing over therollers in contact with only a portion of the periphery of each of therollers, said belt member having "a strand-carrying peripheral portionof substantial width for carrying a. plurality of laterally displacedconvolutions of the strand about the rollers without permitting thestrand to contact the rollers for any substantial distance,

means on said strand carrying belt member adapted to engage the ends ofthe rollers to prevent substantial displacement of the strand carryingbelt member on the rollers in a direction longitudinally of the rollers.10. A thread-storage, thread-advancing device comprising a pair ofcanted rollers and an endless strand carrying belt member passing overthe rollers in contact with only a portion of the periphery of each orthe rollers, saidbelt memher having a strand-carrying peripheral p rtionof substantial width for carrying a plurality of laterally displacedconvolutions of the strand about the rollers without permitting thestrand to contact the rollers for any substantial distance, said strandcarrying belt member having portions adapted to overlapthe ends of therollers to prevent substantial displacement of the belt member on therollers in a direction longitudinally of the,

rollers.

PAUL M. COLE.

